CWNU 2389
0.47
UTI
0.52
CN
0.7
Cdens
1.0
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
53
Core radius and density
1.2 [pc], 3.5 [pc-2]
- CN 0.52 Moderately populated
- Cdens 0.7 Moderately dense
- CC3 1.0 Very high quality
- Clit 0.06 Rarely studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
CWNU 2389 is a moderately populated, moderately dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by very high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 253.473 | -46.735 | 0.346 | -1.177 | -1.923 | -44.383 |
| Hunt & Reffert | 2024 | 253.471 | -46.736 | 0.367 | -1.166 | -1.959 | -41.266 |
| Cavallo et al. | 2024 | 253.473 | -46.735 | 0.36 | â | â | â |
| Hunt & Reffert | 2023 | 253.471 | -46.736 | 0.367 | -1.166 | -1.959 | -41.266 |
| He et al. | 2023 | 253.471 | -46.744 | 0.365 | -1.176 | -1.924 | -44.38 |
đĄ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 2.44 | 5.22 | 2.62 | 190 | 0.060 | 871 | â | â |
| Hunt & Reffert | 2024 | 2.54 | 5.22 | 2.62 | 97 | â | 871(1) | â | â |
| Cavallo et al. | 2024 | 2.24 | 4.93 | â | 380 | 0.060 | â | â | â |
| Hunt & Reffert | 2023 | 2.54 | 5.22 | 2.62 | 97 | â | â | â | â |
| He et al. | 2023 | 2.34 | 5.30 | â | 282 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P76, along with UBC_549.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.44 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.44 (50th percentile).